Using Voice over Internet Protocol (VoIP) calling applications on your mobile phone can save you money if you make a lot of international calls or travel out of the country often. iPhone users have several options when deciding what app to download.
SRR Technologies is the first of it''s kind SIP VoIP consolidated solutions system and services.
Pricing Starting at:
$ 99.99 a port
$ 1.99 a phone number
$ 0.99 per inbound voice circuit from the carrier